From nobody Mon May 12 15:07:46 2025 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=openvz.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1695201763037645.0307221976864; Wed, 20 Sep 2023 02:22:43 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qitPe-000074-9S; Wed, 20 Sep 2023 05:22:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qitPc-0008W3-Jv; Wed, 20 Sep 2023 05:22:24 -0400 Received: from relay.virtuozzo.com ([130.117.225.111]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qitPa-0001tg-2b; Wed, 20 Sep 2023 05:22:23 -0400 Received: from ch-vpn.virtuozzo.com ([130.117.225.6] helo=iris.sw.ru) by relay.virtuozzo.com with esmtp (Exim 4.96) (envelope-from ) id 1qitL0-0028Y8-2w; Wed, 20 Sep 2023 11:21:03 +0200 From: "Denis V. Lunev" To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, "Denis V. Lunev" , Alexander Ivanov Subject: [PULL 16/22] parallels: update used bitmap in allocate_cluster Date: Wed, 20 Sep 2023 11:21:02 +0200 Message-Id: <20230920092108.258898-17-den@openvz.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230920092108.258898-1-den@openvz.org> References: <20230920092108.258898-1-den@openvz.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=130.117.225.111; envelope-from=den@openvz.org; helo=relay.virtuozzo.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZM-MESSAGEID: 1695201764387100001 Content-Type: text/plain; charset="utf-8" We should extend the bitmap if the file is extended and set the bit in the image used bitmap once the cluster is allocated. Sanity check at that moment also looks like a good idea. Signed-off-by: Denis V. Lunev Reviewed-by: Alexander Ivanov --- block/parallels.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/block/parallels.c b/block/parallels.c index b6505fcc5b..3beb18e44f 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -282,6 +282,8 @@ allocate_clusters(BlockDriverState *bs, int64_t sector_= num, return len; } if (s->data_end + space > (len >> BDRV_SECTOR_BITS)) { + uint32_t new_usedsize; + space +=3D s->prealloc_size; /* * We require the expanded size to read back as zero. If the @@ -305,6 +307,12 @@ allocate_clusters(BlockDriverState *bs, int64_t sector= _num, if (ret < 0) { return ret; } + + new_usedsize =3D s->used_bmap_size + + (space << BDRV_SECTOR_BITS) / s->cluster_size; + s->used_bmap =3D bitmap_zero_extend(s->used_bmap, s->used_bmap_siz= e, + new_usedsize); + s->used_bmap_size =3D new_usedsize; } =20 /* @@ -336,6 +344,12 @@ allocate_clusters(BlockDriverState *bs, int64_t sector= _num, } } =20 + ret =3D mark_used(bs, s->used_bmap, s->used_bmap_size, + s->data_end << BDRV_SECTOR_BITS, to_allocate); + if (ret < 0) { + /* Image consistency is broken. Alarm! */ + return ret; + } for (i =3D 0; i < to_allocate; i++) { parallels_set_bat_entry(s, idx + i, s->data_end / s->off_multiplie= r); s->data_end +=3D s->tracks; --=20 2.34.1